Unified Interior Regions

California

States L2 Landing Page Tabs

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Image: Electric Wires Being Removed
October 17, 1989

Electric Wires Being Removed

Electric wires being removed from unstable towers by city utility workers. Arresting sparks from broken wires was a priority in those areas with broken gas mains.

Image: Cliff Failure
October 17, 1989

Cliff Failure

Cliff failure just south of San Gregorio Beach. Slide is 18.3 meters (60 ft) high and displaces approximately 6881 cubic meters (9,000 cubic yards) of material. Large boulders are 1 m (3 ft) across.

Image: Scattered Books in Bookstore
October 17, 1989

Scattered Books in Bookstore

Books lie scattered in aisles of a downtown bookstore.

Image: Collapsed Garage
October 17, 1989

Collapsed Garage

Collapsed garage built on fill.

Image: Collapsed Outer Wall
October 17, 1989

Collapsed Outer Wall

Collapsed outer wall of the Medico Dental Building, Pacific Garden Mall.

Image: Failure of Joist/Columns Interface
October 17, 1989

Failure of Joist/Columns Interface

Failure at joist/columns interface contributed to the collapse of elevated roadbed on Highway 1.

Image: Aerial View of Roadbed Collapse
October 17, 1989

Aerial View of Roadbed Collapse

Aerial view of roadbed collapse near the interface of the cantilever and truss sections of the San Francisco-Oakland Bay Bridge. View northwestward.

Image: Cliff Failure North of Tunitas Creek
October 17, 1989

Cliff Failure North of Tunitas Creek

Cliff failure north of Tunitas Creek. This face continued to slide for a few days after the earthquake. The event in progress exposed dark cliff material.

Image: Residents Camped in Yards
October 17, 1989

Residents Camped in Yards

Many residents camped in their yards after the earthquake.

Image: Structural Failure of House
October 17, 1989

Structural Failure of House

Construction on fill and the absence of adequate shear walls contributed to the failure of this structure.

Image: Collapsed Wall
October 17, 1989

Collapsed Wall

Close-up of collapsed wall of unreinforced masonry, Medico Dental Building in the Pacific Garden Mall.

Image: Support Columns of Highway
October 17, 1989

Support Columns of Highway

Support columns of Highway 1 bridge across Struve Slough protrude through roadbed. This resulted from collapse of the roadbed after the effects of lateral shaking shown in photo 98.

Filter Total Items: 912
USGS
February 18, 1997

LECTURE: -- "LIVING WITH GEOLOGIC HAZARDS IN SAN MATEO COUNTY" WILL BE THE SUBJECT OF THE NEXT U.S. GEOLOGICAL SURVEY’S FREE PUBLIC LECTURE.

USGS
February 13, 1997

"There is mounting evidence that Mars is a water-rich planet that may have experienced warmer climates, and therefore, life, in the past,"according to Michael Carr, an astrogeologist with the U.S.Geological Survey in Menlo Park, Calif.

USGS
January 19, 1997

LECTURE: -- "THE COLORADO RIVER IN THE GRAND CANYON" WILL BE THE SUBJECT OF THE NEXT U.S. GEOLOGICAL SURVEY’S FREE PUBLIC LECTURE.

USGS
January 8, 1997

Hydrologists and chemists from the U.S. Geological Survey will be on Mallard Island, near Pittsburg today, Jan. 8, collecting water and sediment samples from Bay-Delta waters to determine the amount of pesticides that are being washed into the Bay by this year’s floods on Bay-Delta rivers.

USGS
January 3, 1997

The floods have crested and are beginning to recede in most places in the Pacific Northwest. Nevertheless dozens of U.S. Geological Survey personnel, who were busy over the holidays measuring the high streamflows and keeping river stage monitors operating, are still busy in the field and in their offices. Field crews have been hampered by mudslides, road closures, and extremely dangerous condition

USGS
December 18, 1996

The good news is that sea water and wave action aren’t being too rough on some sections of the beach cliffs of the San Mateo County, Calif., coast; the bad news is that slumping caused by fresh water erosion is destroying some of the beach cliffs at rates of up to two meters per year, according to scientists with the U.S. Geological Survey in Menlo Park, Calif.

USGS
December 16, 1996

A new method of assessing the danger of ground failure due to soil liquefaction during an earthquake made its debut in San Francisco, Tuesday afternoon, December 17.

USGS
December 13, 1996

"Secrets in Stone," a video that chronicles the series of scientific discoveries in the early 1960s that led to broad acceptance of the theory of plate tectonics, will be shown for the first time on Tuesday, December 17, 1996, at the annual meeting of the American Geophysical Union (AGU) in San Francisco. The premiere showing will be held at 4:30 p.m., in Room 122 of the Moscone Center.

USGS
September 27, 1996

Dr. Crofton B. Farmer of Pasadena, California, and Dr. M. Patrick McCormick of Hampton, Virginia, have received the 1996 Pecora Award, one of the top federal awards for contributions in remote sensing. 

USGS
November 8, 1995

Where in the United States are Carmen and San Diego? Now, you can get fast and accurate information on the Internet about Carmen, San Diego, and almost 2 million other domestic geographic names, via the new World Wide Web site for the U.S. Geological Survey’s Geographic Names Information System.

USGS
October 2, 1995

Land subsidence, a potential geological hazard throughout most of California’s valleys, is the subject of a two-day symposium in Sacramento, Calif., that will honor one of the pioneers in California geology and groundwater studies.

USGS
October 2, 1995

Joseph F. Poland, whose memory will be honored with a special symposium at this year’s annual meeting of the Association of Engineering Geologists and the Groundwater Resources Association of California in Sacramento, Calif., Oct. 2-8, was a pioneer in the field of engineering geology and one of the world’s leading scientists associated with the United States Geological Survey.